Description:Ghostgunkits.com
This complete Upper Assembly has a 7.5" M4 contour barrel made of 416R steel with a stainless finish in a 1:7 twist rate. The assembly includes a 7" free floating quad rail, a rear charging forged upper receiver, bolt carrier group, bird cage flash hider and a charging handle. It is chambered in .223 Wylde and machined with M4 feed ramps in the barrel extension.